At the beginning of September, Equipmake released Ampere-220 e-axle: a compact, lightweight, high-power electric drive system for manufacturers of high-performance electric vehicles.
It combines one of the most advanced 3D-printed electric motors with all power electronics, including the company’s own silicon carbide inverter, and an integrated transmission system in a compact unit that directly powers the vehicle’s axle, bringing a step change in off-the-shelf performance for electric sports cars and supercars.
Extremely lightweight yet efficient and cost-effective, Ampere has peak power of 220kW and a maximum motor speed of 30,000rpm. Weighing just under 20kg, it offers power density of 11kW per kg – more than twice that of a conventional electric motor. The key to its performance is its combination of Equipmake’s spoke design with additive manufacturing, allowing Ampere’s metal structure to be 3D-printed, rather than milled from a solid billet.
Making its debut in the Ampere-220 e-axle, the advanced electric motor is combined with all necessary power electronics, including Equipmake’s high-performance silicon carbide-based inverter, and an integrated transmission system too, resulting in a state-of-the-art, highly compact and lightweight electric drive system that is ready to be integrated into a high-performance electric vehicle.
Debuted in twin-motor specification, Ampere-220 e-axle offers 440kW peak power per axle with a total unit weight of just 85kg. Equipmake can also develop a single-motor e-axle application with 220kW of peak power per axle.
«Equipmake has always been at the forefront of innovation in electric motors, with our APM range offering class-leading power densities thanks to their compact, lightweight designs. Ampere showcases the next leap, and combined with our own power electronics, including our silicon carbide inverter, and transmission system, we have created the Ampere-220 e-axle», said Ian Foley, Equipmake CEO.